Storage of oils



Dec. 2, 1930.

T. S. COOKE ET AL STORAGE OF OILS Filed March 18, 1926 v2 Sheets-Sheet lT. S. COOKE ET AL STORAGE oF oILs Filed March 18, 1926 2 Sheets-Sheetr 2jzvf? 0 s,

ibi/7 /m Dec. 2, 1930.

Patented Dec. Z, 193@ UNITEDl STATES PATEN'r THOMAS SKIDMORE COOKE-ANDJOHN EVANS -ROUSE, F CASPER, WYOMING, ASSIGNORS TO STANDARD OIL COMPANY,OF WHITING, INDIANA, A CORPORATION 0F INDIANA STORAGE OF OILS Thisinvention relates to the storage of petroleum liquids containingvolatile fracl tions, such as crude oil, gasoline, or the like. It willbe fully understood from the following specification, illustrated by theaccompanying drawing, in which:

Figure 1 is an elevation o f a pair of storage tanks for petroleumliquids containing volatile fractions, and associated vapor lines,

i0 breather bag and flame arresters; Fig. 2 is a plan of the apparatusshown in Fig. 1;

Fig. 3 is a longitudinal sectional view of a preferred form of liamearrester;

Fig. 4 is a cross-sectional View of the flamearrester on the line 4--4of Fig. 3;

. Fig. 5 is a cross-sectional view of the amearrester on the line 5-5 ofFig. 3 on a larger sca e. .v

10 and 11 are storage tanksfor petroleum liquids. containing volatilefractions. These tanks are provided with vapor lines 12 and 13 whichcommunicate with each other and which may also connect with the vaporline 14 which communicates with a breather bag 15, of the type describedin Wilsons ULS. Patent No. 1,596,385, granted August 17, 1926. Thehousing for the breather bag is shown at 16. The vapor lines 12 and 13are provided with lame-arresters 17 and 18 of the type hereinafterdescribed and illustrated in Figs. 3, 4 and 5. The line 14 or otherdesired part of the vapor system is provided with a pressure reliefvalve or seal 19, which may suitably be that described in Atwells U. S.Patent No. 1,553,844, granted Septemlber 15. 1925.

The preferred form of Haine-arrester comprises a' mass 20 of metal ofgood conductivity which is of substantial thickness along thev directionof flow of the vapors and'is located in chamber 23, which constitutes anenlarged section of the vapor line 12. The mass of metal is such thatit, is readily permeable by the flowing vapors while devoid of passagesof sufficient size to permit the passage a cylinder which substantially-completely lls the cross-section of the chamber 23, so that the vaporscan only pass through the 'chamber 23 by Way of the small intersticesbetween the corrugated sheet 22 and the screening 21. Spiders 211 arepreferably located at the ends of the mass of metal to give it supportin case of an explosion of the vapors in the line l2. The mass of metal2O is of'substantial thickness so that it will not be rupturedv ordisplaced by an explosion on either side while flames are prevented frompassing therethrough. v

4We claim:

1. In combination with spaced sections of a vapor line, a chamber membertherebetween constituting an enlargement of the vapor line, a mass offlame-arresting material in said chamber of greater cross sectional areathan the bore of said sections, and

means spacing the mass from said sections.

2. In combination with spaced sections of a vapor line, a chamber membertherebetween constituting an enlargement of the vapor line, a mass ofame-arresting material in said chamber of greater cross sectional area glthan the bore of said'sections, and spiders within the chamber member,oneat each end thereof, said spiders abutting the ends of said sections,reinforcing the mass and spacing the same from said ends.

3. -In a vapor line, a chamber member of larger cross sectional areathan the bore of the vapor line, a llame-arrester disposed in saidchamber of such size as to substantially iill the same, saidflame-arrester consisting of a reticulate member, and a sheet of metalrolled substantially in the form of a spiral, said arrester providing amultiplicity of passageways permeable by gas but effective to preventpassage of a flame therethrough. THOMAS SKIDMORE COOKE.

JOHN EVANS ROUSE.

50 gated metal p1ate'22, rolled together to form

